mirror of
https://github.com/zeromq/libzmq.git
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145 lines
3.7 KiB
C++
145 lines
3.7 KiB
C++
/*
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Copyright (c) 2009-2011 250bpm s.r.o.
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Copyright (c) 2007-2011 iMatix Corporation
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Copyright (c) 2007-2011 Other contributors as noted in the AUTHORS file
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This file is part of 0MQ.
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0MQ is free software; you can redistribute it and/or modify it under
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the terms of the GNU Lesser General Public License as published by
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the Free Software Foundation; either version 3 of the License, or
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(at your option) any later version.
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0MQ is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU Lesser General Public License for more details.
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You should have received a copy of the GNU Lesser General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#include <assert.h>
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#include "../include/zmq.h"
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#include "../include/zmq_utils.h"
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int main (int argc, char *argv [])
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{
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void *ctx = zmq_init (1);
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assert (ctx);
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// Check whether requests are discarded because of disconnected requester.
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// Create a server.
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void *xrep = zmq_socket (ctx, ZMQ_XREP);
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assert (xrep);
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int rc = zmq_bind (xrep, "tcp://127.0.0.1:5560");
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assert (rc == 0);
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// Create a client.
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void *xreq = zmq_socket (ctx, ZMQ_XREQ);
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assert (xreq);
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rc = zmq_connect (xreq, "tcp://127.0.0.1:5560");
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assert (rc == 0);
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// Send requests.
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rc = zmq_send (xreq, "ABC", 3, 0);
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assert (rc == 3);
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rc = zmq_send (xreq, "DEF", 3, 0);
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assert (rc == 3);
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// Disconnect client.
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rc = zmq_close (xreq);
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assert (rc == 0);
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// Wait a while for disconnect to happen.
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zmq_sleep (1);
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// Try to receive a request -- it should have been discarded.
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char buff [3];
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rc = zmq_recv (xrep, buff, 3, ZMQ_DONTWAIT);
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assert (rc < 0);
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assert (errno == EAGAIN);
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// Clean up.
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rc = zmq_close (xrep);
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assert (rc == 0);
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// New test. Check whether reply is dropped because of HWM overflow.
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int one = 1;
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xreq = zmq_socket (ctx, ZMQ_XREQ);
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assert (xreq);
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rc = zmq_setsockopt (xreq, ZMQ_RCVHWM, &one, sizeof(one));
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assert (rc == 0);
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rc = zmq_bind (xreq, "inproc://a");
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assert (rc == 0);
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void *rep = zmq_socket (ctx, ZMQ_REP);
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assert (rep);
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rc = zmq_setsockopt (rep, ZMQ_SNDHWM, &one, sizeof(one));
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assert (rc == 0);
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rc = zmq_connect (rep, "inproc://a");
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assert (rc == 0);
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// Send request 1
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rc = zmq_send (xreq, buff, 1, 0);
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assert (rc == 1);
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// Send request 2
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rc = zmq_send (xreq, buff, 1, 0);
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assert (rc == 1);
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// Receive request 1
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rc = zmq_recv (rep, buff, 1, 0);
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assert (rc == 1);
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// Send request 3
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rc = zmq_send (xreq, buff, 1, 0);
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assert (rc == 1);
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// Send reply 1
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rc = zmq_send (rep, buff, 1, 0);
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assert (rc == 1);
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// Receive request 2
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rc = zmq_recv (rep, buff, 1, 0);
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assert (rc == 1);
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// Send reply 2
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rc = zmq_send (rep, buff, 1, 0);
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assert (rc == 1);
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// Receive request 3
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rc = zmq_recv (rep, buff, 1, 0);
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assert (rc == 1);
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// Send reply 3
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rc = zmq_send (rep, buff, 1, 0);
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assert (rc == 1);
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// Receive reply 1
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rc = zmq_recv (xreq, buff, 1, 0);
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assert (rc == 1);
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// Receive reply 2
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rc = zmq_recv (xreq, buff, 1, 0);
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assert (rc == 1);
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// Try to receive reply 3, it should have been dropped.
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rc = zmq_recv (xreq, buff, 1, ZMQ_DONTWAIT);
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assert (rc == -1 && errno == EAGAIN);
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// Clean up.
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rc = zmq_close (xreq);
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assert (rc == 0);
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rc = zmq_close (rep);
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assert (rc == 0);
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rc = zmq_term (ctx);
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assert (rc == 0);
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return 0 ;
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}
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